Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
120064lightly pollutedexcellent101excellent
110068lightly pollutedexcellent101excellent
100072lightly pollutedexcellent101excellent
090060goodexcellent111excellent
080069lightly pollutedexcellent101excellent
070066lightly pollutedexcellent101excellent
060062lightly pollutedexcellent101excellent
050060goodexcellent111excellent
040066lightly pollutedexcellent111excellent
030065lightly pollutedexcellent131excellent
020074lightly pollutedexcellent161excellent
010087lightly pollutedexcellent171excellent
000074lightly pollutedexcellent181excellent
2300101moderately pollutedexcellent201excellent
220075lightly pollutedexcellent161excellent
210088lightly pollutedexcellent171excellent
200099lightly pollutedexcellent191excellent
1900117moderately pollutedgood211excellent
1800129moderately pollutedgood231excellent
1700136moderately pollutedgood241excellent
1600135moderately pollutedgood251excellent
1500133moderately pollutedgood271excellent
140094lightly pollutedgood221excellent
130079lightly pollutedgood211excellent